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Reflective Blazed Holographic Diffraction Gratings

  • Less Stray Light than Ruled Diffraction Gratings
  • Improved Diffraction Efficiency Over Holographic Gratings
  • Broad Spectral Range

Our blazed holographic gratings ensure less stray light than conventional mechanically ruled gratings without any reduction in diffraction efficiency. First, a holographic master grating is created by standard interference techniques. Then, a patented ion-beam etching technology is employed to create the standard “sawtooth” design common to ruled gratings. However, because the technique eliminates the need for mechanical ruling from diamond-tipped tooling, the periodic structure errors that cause stray light are no longer present, allowing these gratings to be used in instrumentation requiring excellent efficiency and resolution with minimal stray light and ghosting. These gratings are ideal components in all varieties of spectrometers, spectrophotometers, and monochromators. Each grating is aluminum coated for maximum performance throughout the ultraviolet, visible, and infrared spectrums.

Handling Gratings: Gratings require special handling, making them prone to fingerprints and aerosols. Gratings should only be handled by the edges. Before attempting to clean a grating, please contact us.

Common Specifications

Dimensional Tolerance (mm):
±1.0
Coating:
Bare Aluminum
Substrate:
Float Glass
Thickness (mm):
3.0

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